[go: up one dir, main page]

EP1166844A3 - Separation of metal chlorides from gaseous reaction mixtures from chlorosilane synthesis - Google Patents

Separation of metal chlorides from gaseous reaction mixtures from chlorosilane synthesis Download PDF

Info

Publication number
EP1166844A3
EP1166844A3 EP01112041A EP01112041A EP1166844A3 EP 1166844 A3 EP1166844 A3 EP 1166844A3 EP 01112041 A EP01112041 A EP 01112041A EP 01112041 A EP01112041 A EP 01112041A EP 1166844 A3 EP1166844 A3 EP 1166844A3
Authority
EP
European Patent Office
Prior art keywords
metal chlorides
chlorosilanes
suspension
raw gas
gaseous reaction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01112041A
Other languages
German (de)
French (fr)
Other versions
EP1166844A2 (en
Inventor
Bernd Vendt
Bernd Köhler
Eberhard Schulz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wacker Chemie AG
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Wacker Chemie AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Degussa GmbH, Wacker Chemie AG filed Critical Degussa GmbH
Publication of EP1166844A2 publication Critical patent/EP1166844A2/en
Publication of EP1166844A3 publication Critical patent/EP1166844A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/0081—Feeding the steam or the vapours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/73—After-treatment of removed components
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B9/00—General methods of preparing halides
    • C01B9/02—Chlorides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Abtrennung von Metallchloriden aus dem bei der Umsetzung von technischem Silizium mit Chlorwasserstoff entstehenden heißen, gasförmigen Reaktionsgemisch (Rohgas), bei dem man das Rohgas in eine im Kreis geführte Suspension von Metallchloriden in Chlorsilanen einleitet, die Temperatur des Rohgases von dessen Einleitungstemperatur bis zur Temperatur des bei der Einleitung entstehenden dreiphasigen Gas/Flüssigkeits/Feststoff-Gemisches zum Teil durch direkte, durch Verdampfung von Chlorsilanen bewirkte Kühlung und zum Teil durch indirekte Kühlung absenkt, einen Teil der entstandenen Suspension von Metallchloriden in flüssigen Chlorsilanen zur Einleitungsstelle des Rohgases zurückführt und aus dem anderen Teil der Suspension die Metallchloride abtrennt. Die Erfindung betrifft weiterhin einen Apparat (oder Kondensator), in dem das Rohgas zur Abscheidung von Metallchloriden und Chlorsilanen in eine Suspension von Metallchloriden in Chlorsilanen eingeleitet wird, sowie eine Filter- und Lösevorrichtung zur Trennung der Suspension von Metallchloriden in Chlorsilanen und zur Weiterbehandlung der abgetrennten Metallchloride.The invention relates to a method for separating Metal chlorides from the implementation of technical Silicon with hydrogen chloride, hot, gaseous Reaction mixture (raw gas), in which the raw gas in a circular suspension of metal chlorides in Chlorosilanes initiates the temperature of the raw gas whose initiation temperature up to the temperature of the resulting three-phase gas / liquid / solid mixture partly through direct, through Evaporation of chlorosilanes caused cooling and partly lowered by indirect cooling, some of the resulting Suspension of metal chlorides in liquid chlorosilanes leads back to the point of introduction of the raw gas and out the other part of the suspension separates the metal chlorides. The invention further relates to an apparatus (or condenser) in which the raw gas to separate Metal chlorides and chlorosilanes in a suspension of Metal chlorides are introduced into chlorosilanes, as well a filter and dissolver for separating the suspension of metal chlorides in chlorosilanes and for further treatment the separated metal chlorides.

EP01112041A 2000-06-20 2001-05-23 Separation of metal chlorides from gaseous reaction mixtures from chlorosilane synthesis Withdrawn EP1166844A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10030251A DE10030251A1 (en) 2000-06-20 2000-06-20 Separation of metal chlorides from gaseous reaction mixtures from chlorosilane synthesis
DE10030251 2000-06-20

Publications (2)

Publication Number Publication Date
EP1166844A2 EP1166844A2 (en) 2002-01-02
EP1166844A3 true EP1166844A3 (en) 2002-01-23

Family

ID=7646311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112041A Withdrawn EP1166844A3 (en) 2000-06-20 2001-05-23 Separation of metal chlorides from gaseous reaction mixtures from chlorosilane synthesis

Country Status (4)

Country Link
US (1) US20010053339A1 (en)
EP (1) EP1166844A3 (en)
JP (1) JP2002060213A (en)
DE (1) DE10030251A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342828A1 (en) * 2003-09-17 2005-04-14 Degussa Ag High purity pyrogenic silica
EP1700828A1 (en) 2005-03-09 2006-09-13 Degussa AG Method for producing ultra-high purity, optical quality, glass articles
EP1700830A1 (en) 2005-03-09 2006-09-13 Novara Technology S.R.L. Process for the production of monoliths by means of the invert sol-gel process
EP1700832A1 (en) 2005-03-09 2006-09-13 Degussa AG A method of producing glass of optical quality
EP1700824A1 (en) 2005-03-09 2006-09-13 Degussa AG Granules based on pyrogenically prepared silicon dioxide, method for their preparation and use thereof
PL1700831T3 (en) 2005-03-09 2008-03-31 Degussa Novara Tech S P A Process for the production of monoliths by means of the sol-gel process
EP1700829A1 (en) * 2005-03-09 2006-09-13 Degussa AG Process for the production of glass-monoliths by means of the sol-gel process
US9315382B2 (en) 2006-03-23 2016-04-19 Keystone Metals Recovery Inc. Metal chlorides and metals obtained from metal oxide containing materials
US7736614B2 (en) * 2008-04-07 2010-06-15 Lord Ltd., Lp Process for removing aluminum and other metal chlorides from chlorosilanes
DE102009020143A1 (en) * 2009-05-04 2010-11-11 Pv Silicon Forschungs- Und Produktionsgesellschaft Mbh Process for the treatment of saw waste for the recovery of silicon for the production of solar silicon
US8298490B2 (en) * 2009-11-06 2012-10-30 Gtat Corporation Systems and methods of producing trichlorosilane
US20160008784A1 (en) * 2013-03-13 2016-01-14 Sitec Gmbh Temperature management in chlorination processes and systems related thereto
JP6897342B2 (en) * 2017-06-07 2021-06-30 三菱マテリアル株式会社 Chlorosilane recovery method and chlorosilane recovery device
WO2019098343A1 (en) 2017-11-20 2019-05-23 株式会社トクヤマ Production method for trichlorosilane, and pipe
CN108862284A (en) * 2018-07-18 2018-11-23 兰州天大华瑞环境工程技术有限公司 A kind of production of polysilicon link slurry processing unit and method
CN109529545A (en) * 2018-12-12 2019-03-29 安徽金禾实业股份有限公司 A kind of methyl acetoacetate exhaust gas treating method and device
CN111908475B (en) * 2019-05-08 2023-02-07 河南尚宇新能源股份有限公司 Recovery system and method for trichlorosilane wet dedusting circulating liquid

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878291A (en) * 1971-12-11 1975-04-15 Degussa Process for the production of metal free chlorosilane by the chlorination or hydrochlorination of ferrosilicon
US4130632A (en) * 1976-05-25 1978-12-19 Wacker-Chemitronic Gesellschaft Fur Elecktronik-Grundstoffe Mbh Process for the manufacture of trichlorosilane and silicon tetrachloride
DE3045900A1 (en) * 1980-12-05 1982-07-08 Babcock-BSH AG vormals Büttner-Schilde-Haas AG, 4150 Krefeld Washing waste gases and plant - using condensate from waste gas as cleaning liq. after reheating to dew-point
DE3221148A1 (en) * 1981-07-29 1983-02-10 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Apparatus and process for separating and drying solids from liquids
DE3509782A1 (en) * 1985-03-19 1986-10-02 SEP Gesellschaft für technische Studien, Entwicklung, Planung mbH, 8000 München Process and apparatus for purifying and cooling exhaust gases resulting from combustion, heating or chemical processes
US4828697A (en) * 1985-09-17 1989-05-09 Schenk Filterbau Gmbh Suction filter
US5362393A (en) * 1992-02-10 1994-11-08 Karl Brieden Bau-Und Beteiligungs-Kg Pressure filter for liquids

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878291A (en) * 1971-12-11 1975-04-15 Degussa Process for the production of metal free chlorosilane by the chlorination or hydrochlorination of ferrosilicon
US4130632A (en) * 1976-05-25 1978-12-19 Wacker-Chemitronic Gesellschaft Fur Elecktronik-Grundstoffe Mbh Process for the manufacture of trichlorosilane and silicon tetrachloride
DE3045900A1 (en) * 1980-12-05 1982-07-08 Babcock-BSH AG vormals Büttner-Schilde-Haas AG, 4150 Krefeld Washing waste gases and plant - using condensate from waste gas as cleaning liq. after reheating to dew-point
DE3221148A1 (en) * 1981-07-29 1983-02-10 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Apparatus and process for separating and drying solids from liquids
DE3509782A1 (en) * 1985-03-19 1986-10-02 SEP Gesellschaft für technische Studien, Entwicklung, Planung mbH, 8000 München Process and apparatus for purifying and cooling exhaust gases resulting from combustion, heating or chemical processes
US4828697A (en) * 1985-09-17 1989-05-09 Schenk Filterbau Gmbh Suction filter
US5362393A (en) * 1992-02-10 1994-11-08 Karl Brieden Bau-Und Beteiligungs-Kg Pressure filter for liquids

Also Published As

Publication number Publication date
DE10030251A1 (en) 2002-01-03
JP2002060213A (en) 2002-02-26
EP1166844A2 (en) 2002-01-02
US20010053339A1 (en) 2001-12-20

Similar Documents

Publication Publication Date Title
EP1166844A3 (en) Separation of metal chlorides from gaseous reaction mixtures from chlorosilane synthesis
DE69216879T2 (en) Air separation
US4324567A (en) Separation of gaseous components from a gaseous mixture by physical scrubbing
IE53080B1 (en) Spent oil recovery process
ATE26996T1 (en) METHOD AND DEVICE FOR OBTAINING FATS AND OILS.
SG160372A1 (en) Method for producing base lubricating oil from waste oil
US4406778A (en) Spent oil recovery process
EP1544166A3 (en) High recovery carbon monoxide production process
DE60313863T2 (en) METHOD AND DEVICE FOR SEPARATING A MIXTURE OF HYDROGEN AND CARBON MONOXIDE
CN106958989B (en) Method and apparatus for treating gas mixtures using separation techniques
DE69913320D1 (en) METHOD FOR TREATING GAS FLOWS IN POLYOLEFINE PRODUCTION
JPH08231978A (en) Method for fractionation and / or purification of natural lipid substances
CN105709565B (en) Method and device for regenerating a scrubbing medium in a physical gas scrubbing
US4311495A (en) Separating carbon dioxide and ethane by liquid-liquid extraction
DE19541339B4 (en) Process for recovering carbon monoxide
KR101947350B1 (en) Systems and methods for ammonia purification
DE60324929D1 (en) PROCESS FOR ISOTOPE SEPARATION
EP1447122A3 (en) Method and apparatus for reducing aerosol entrainment from a separation column
JPH04144664A (en) Extractive production of pungent component and red dyestuff component of red pepper
CN109963810B (en) Method and apparatus for syngas fractionation using acid gas scrubbing and cryogenic separation processes
KR20180055843A (en) Method and apparatus for producing carbon monoxide and hydrogen mixture
ATE221891T1 (en) METHOD FOR PURIFYING TETRAETHOXYSILANE
NO774454L (en) PROCEDURE FOR CONCENTRATING DILUTED PHOSPHORIC ACID
JPS6058498A (en) Extraction of wheat embryo oil
JPS60127397A (en) Extraction and separation method of fats and oils from seeds

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 20010523

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7C 01B 9/02 A, 7C 01B 33/107 B, 7B 01D 25/12 B, 7B 01D 29/11 B, 7B 01D 29/76 B, 7B 01D 37/00 B, 7B 01D 5/00 B, 7F 28B 9/02 B

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20021223

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20031201